active call list and selecting a call

LL-14:  Service checks the CadData coming in through a PUT method for
the eCad19 (eResponse13/vehicle number) to have a value and sets a
"claiming call" outbound property accordingly.  Database updates active
field based on whether or not the call is being claimed.

LL-13:  Active calls are listed
LL-11:  Calls that are already claimed are not returned to the client at
all.

Added sql script to truncate/reset the CadData table during testing
since Foreign Key constraints prevent that.  Should not be used when
data integrity is valued.